Masood Maryam, Barlow Claire Y, Wilson David C
Institute for Manufacturing, University of Cambridge, Cambridge, UK
Institute for Manufacturing, University of Cambridge, Cambridge, UK.
Waste Manag Res. 2014 Sep;32(9):834-47. doi: 10.1177/0734242X14545373. Epub 2014 Aug 8.
The current status of solid waste management in Lahore, a metropolitan city of Pakistan, is reviewed in this article using an existing approach, the UN-Habitat city profile. This involves a systematic quantitative and qualitative assessment of physical components and governance features of the current waste management system. A material flow diagram (MFD) is developed, which allows visualisation of the current waste management system with all related inputs and outputs. This study shows that in the current system, waste collection and transportation is the main focus, however the collection coverage is only about 68%. There is no controlled or even semi-controlled waste disposal facility in Lahore. There is no official recycling system in the city. It is estimated that currently ~27% of waste by weight is being recycled through the informal sector. Making use of the organic content of the waste, a composting facility is operative in the city, producing 47,230 tonnes year(-1) of organic compost. Lahore does not perform very well in governance features. Inclusivity of users and providers of the waste management system is low in the city, as not all stakeholders are consulted in the decision making processes. Waste management costs US$20 per tonne of waste, where the main focus is only on waste collection, and the current user fees are much lower than the actual costs. This study recommends that recycling should be promoted by increasing public awareness and integrating the informal sector to make the current system sustainable and financially viable.
本文采用联合国人居署城市概况这一现有方法,对巴基斯坦大城市拉合尔的固体废物管理现状进行了评估。这涉及对当前废物管理系统的物理组成部分和治理特征进行系统的定量和定性评估。绘制了物质流图(MFD),通过该图可以直观呈现当前废物管理系统及其所有相关的输入和输出。研究表明,在当前系统中,废物收集和运输是主要重点,但收集覆盖率仅约为68%。拉合尔没有受控甚至半受控的废物处理设施。该市没有官方回收系统。据估计,目前约27%的重量废物通过非正规部门进行回收。利用废物中的有机成分,该市有一个堆肥设施在运行,每年生产47230吨有机堆肥。拉合尔在治理特征方面表现不佳。城市中废物管理系统的用户和提供者的包容性较低,因为并非所有利益相关者都在决策过程中得到咨询。废物管理成本为每吨20美元,主要重点仅在于废物收集,而当前的用户收费远低于实际成本。本研究建议,应通过提高公众意识和整合非正规部门来促进回收利用,以使当前系统具有可持续性和财务可行性。